查询词典 hearth furnace

The furnace protection process is optimized from the following ways: determining the best fettling time and location for various fettling materials,adjusting reasonably the component of end slag,improving slag splashing effect,regulating nitrogen pressure,meeting demands for slag splashing,and so the cost of furnace protection is reduced.

认真分析和实验，从三个方面对护炉工艺进行了优化：确认各种不同补炉料的最佳补炉时间和位置，合理调整终渣成分、改善溅渣效果，调整氮气压力，满足溅渣需求，对护炉工艺进行了优化，从而降低了护炉成本，取得了明显的经济效益。

College of Guandong Business, Guanzhou 510320, China）Abstract: Since large-scale vertical quench furnace is voluminous, whose working condition is a typically complex process with distributed parameter, nonlinear, multi-inputs/multi-outputs, close coupled variables, etc, dynamically decoupling control algorithm of temperature distributed parameter system in the furnace was presented, by which the whole system was decoupled to several subsystems and the implementation of controller was simplified. With finite difference approximation, the space and time step size was solved to ensure the convergency of finite difference approximation. After decoupling, the subsystems were controlled with self-learning PID control algorithm. The results show that the temperature control precision and homogeneity are improved; the overshoot and process in temperature rising period are reduced simultaneity.

摘 要：针对大型立式淬火炉体积庞大，工况复杂，炉内温度分布呈本征非均匀性，具有多输入/多输出、非线性、强耦合等特性，难以实现炉内温度高精度高均匀性控制目标等问题，提出一种温度分布参数系统动态解耦控制算法，其原理是：采用有限维逼近方法将对象解耦为多个独立的子系统，简化控制器的实现过程；通过分析有限维逼近方法的收敛性，获得保证收敛性的空间和时间步长应满足的条件；解耦后的子系统采用自学习PID控制算法，实现炉内温度高精度和高均匀性控制以及升温过程的快速性和小超调。

The heating furnace has a high combustion intension, the volume of firebox is only dozens percents as much as general heating furnace, the thermal efficiency is as high as 90% and save energy as much as 30%, it has a wonderful application prospect.

该加热炉燃烧强度高，燃烧室体积只相当于普通加热炉的几十分之一，热效率已达到90%以上，节省能源在30%左右。有很好的应用前景。

Liu trucks in the design process, is based largely on the furnace blast furnace capacity to determine the parameters of an effective information vehicle volume, structure and size; information on the trucks in two materials used truck information from the form to feed

在料车的设计过程中，主要是根据高炉的炉容参数来确定料车的有效容积、结构和尺寸；料车在上料时采用两台料车往返的形式来进行送料。

The main products are: all kinds of industrial furnace regenerator with cordierite, mullite, high alumina, corundum honeycomb, and various materials and specifications of the regenerator the ball, and with regenerator tile block; all kinds of industrial furnace series×, corundum brick, clay brick, lightweight insulation materials, heat insulation brick light weight, low-iron mullite brick, silica brick, magnesia brick, aluminum MgO-C Bricks, magnesia-chrome brick, chrome Corundum bricks, a steel trough brick slipway and a variety of refractory materials such as sizing the outlet; all kinds of industrial furnaces with wear-resistant castables, low cement castable high-strength, impermeable material, gravity feed can be plastic, refractory clay, such as amorphous material; a variety of wear-resistant ceramic materials: ceramic lining, grinding balls, ceramic pipes, ceramic cylinder liner, piston, valves and other ceramics.

主要产品有：各种工业炉蓄热室用堇青石质、莫来石质、高铝质、刚玉质蜂窝体以及各种材质和规格的蓄热球，并配有蓄热体挡板砖；各种工业炉用系列高铝砖、刚玉砖、粘土砖、轻质保温材料、轻质隔热砖、低铁莫来石砖、硅砖、镁砖、铝镁碳砖、镁铬砖、铬刚玉砖、出钢槽滑道砖以及各种定径水口等耐火材料；各种工业炉用耐磨浇注料、低水泥高强浇注料、防渗料、自流料、可塑料、耐火泥等不定形材料；各种材质的耐磨陶瓷制品：陶瓷衬板、研磨球、陶瓷管道、陶瓷缸套、柱塞、陶瓷阀门等。

An analytical model was built up on the jet deflection in the crossflow by applying the theorem of momentum, which takes full account of mixing between the upstream fluid and burner jet, and of the total pressure difference between the two sides of the jets. Through analysis of this model, experimental study and numerical simulation, effects of the nozzle spacing ratio, width of the furnace corner, width of the nozzle and imaginary circle diameter on the aerodynamic field in the furnace were obtained.

本文综合考虑了炉内旋转气流与燃烧器射流的混合和燃烧器射流向火侧与背火侧的全压差等因素，应用动量定理建立了横向气流中射流偏转的分析模型，并结合冷态模化试验和数值模拟计算，得到了燃烧器间隙率、炉膛切角、喷口宽度和假想切圆直径等因素对炉内空气动力场影响的规律。

Main directions: the vacuum resistance furnace, vacuum induction furnace, and so on.

主要方向为：真空电阻炉、真空感应熔炼炉等。

Heating equipment: 500 kilowatts, 250 kilowatts IF induction furnace, 700-, 800-reverberatory furnace.

加热设备：有500千瓦、250千瓦（2台）的中频感应电炉，700型、800型反射炉。

Most steel is normally electrically melted by a furnace or for high alloyed products a furnace for induction is used.

大多数钢铁通常是由一个电动熔化炉或合金产品的高感应炉使用。

Medium frequency induction furnace is used for heating in stead of traditional gas heating furnace.

0引言应用中频电源实现感应加热的最大特点是工件加热速度快，温度易于控制，投资省，经济效益显著，在机械和冶金行业的金属锻造、熔炼、焊接、透热和淬火等热加工、热处理场合应用广泛。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48